Class: Transform::Parser::Number

Inherits:
Object
  • Object
show all
Defined in:
lib/source/redshift/transform.rb

Overview

Class Color is responsible for handling css numbers values with our without units parsing them, computing new values, and returning a final value with its intial unit reapplied.

Class Method Summary collapse

Class Method Details

.compute(from, to, delta) ⇒ Object

call-seq:

Parser::Number.compute(number,number,float) -> string

Computes from an current value to a newvalue based on a delta and returns a css compatible string.



243
244
245
 
# File 'lib/source/redshift/transform.rb', line 243

def self.compute(from,to,delta)
  Transform.compute(from,to,delta)
end

.parse(value) ⇒ Object

call-seq:

Parser::Number.parse(str or number) -> number or false

Parses a number value from as either a string or number and returns an integer that will later be transformed. Returns false if the value cannot be parsed as a number

Parser::Number.parse(20) # => 20 Parser::Number.parse(0) # => 0 Parser::Number.parse(‘220px’) # => 220

Parser::Number.parse(‘left’) # => false



258
259
260
261
262
 
# File 'lib/source/redshift/transform.rb', line 258

def self.parse(value)
  `value = value.__value__ || String(value)`
  `parsed = parseFloat(value)`
  `(parsed || parsed == 0) ? parsed : false`
end

.serve(value, unit) ⇒ Object

Returns the final value as a string at the termination of a series of transformations with its inital unit reapplied

Parser::Number.serve(20,‘px’) # => ‘20px’ Parser::Number.serve(40, nil) # => ‘40 The second argument (unit) exists for polymorphic calls and is not used.



270
271
272
 
# File 'lib/source/redshift/transform.rb', line 270

def self.serve(value, unit)
  return (unit) ? value + unit : value
end